<?php
echo "计算输入的两个整数的加减乘除的结果\n";
echo"请输入两个整数，用英文逗号分隔：\n";
$count = fscanf(STDIN,"%f,%f %s",$a,$b,$other);
//var_dump($count,$a,$b,$other);
if ($count>2) {
    echo "输入的数据后边不要有乱七八糟的东西~\n";
}else if($count ==2){
    $he = $a + $b;
    $cha = $a - $b;
    echo "$a + $b = $he\n";
    echo "$a - $b = $cha\n";}
else{// 没有成功接收两个数据
    echo "数据输入错误，请按照要求的格式进行输入~\n";
}